28761720

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{103}}^1\times {\mathrm{179}}^1$

素因数の和:309

約数の個数: 128

約数和(自身を含む): 94348800

約数和(自身を除く): 65587080

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 13, 15, 20, 24, 26, 30, 39, 40, 52, 60, 65, 78, 103, 104, 120, 130, 156, 179, 195, 206, 260, 309, 312, 358, 390, 412, 515, 520, 537, 618, 716, 780, 824, 895, 1030, 1074, 1236, 1339, 1432, 1545, 1560, 1790, 2060, 2148, 2327, 2472, 2678, 2685, 3090, 3580, 4017, 4120, 4296, 4654, 5356, 5370, 6180, 6695, 6981, 7160, 8034, 9308, 10712, 10740, 11635, 12360, 13390, 13962, 16068, 18437, 18616, 20085, 21480, 23270, 26780, 27924, 32136, 34905, 36874, 40170, 46540, 53560, 55311, 55848, 69810, 73748, 80340, 92185, 93080, 110622, 139620, 147496, 160680, 184370, 221244, 239681, 276555, 279240, 368740, 442488, 479362, 553110, 719043, 737480, 958724, 1106220, 1198405, 1438086, 1917448, 2212440, 2396810, 2876172, 3595215, 4793620, 5752344, 7190430, 9587240, 14380860, 28761720]

約数ペア:

[(1, 28761720), (2, 14380860), (3, 9587240), (4, 7190430), (5, 5752344), (6, 4793620), (8, 3595215), (10, 2876172), (12, 2396810), (13, 2212440), (15, 1917448), (20, 1438086), (24, 1198405), (26, 1106220), (30, 958724), (39, 737480), (40, 719043), (52, 553110), (60, 479362), (65, 442488), (78, 368740), (103, 279240), (104, 276555), (120, 239681), (130, 221244), (156, 184370), (179, 160680), (195, 147496), (206, 139620), (260, 110622), (309, 93080), (312, 92185), (358, 80340), (390, 73748), (412, 69810), (515, 55848), (520, 55311), (537, 53560), (618, 46540), (716, 40170), (780, 36874), (824, 34905), (895, 32136), (1030, 27924), (1074, 26780), (1236, 23270), (1339, 21480), (1432, 20085), (1545, 18616), (1560, 18437), (1790, 16068), (2060, 13962), (2148, 13390), (2327, 12360), (2472, 11635), (2678, 10740), (2685, 10712), (3090, 9308), (3580, 8034), (4017, 7160), (4120, 6981), (4296, 6695), (4654, 6180), (5356, 5370)]